On 03.11.13, Miguel Angel Baltierra, Assoc. AIA, LEED AP, interviewed Marvin Mass, PE, about his latest book “The Invisible Architect,” [reviewed in the last issue of e-Oculus] published by Piloti Press for Cosentini Associates, a TetraTech Company (2012). Listen to the interview, which took place just before the Oculus Book Talk.